4 files changed, 11 insertions, 31 deletions

diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index ac6c78fe19cf..7a380208b006 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -36,7 +36,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
-#include <linux/syslog.h>
+#include <linux/vmalloc.h>
 
 #include "internal.h"
 
@@ -121,18 +121,6 @@ static const struct seq_operations pstore_ftrace_seq_ops = {
 	.show	= pstore_ftrace_seq_show,
 };
 
-static int pstore_check_syslog_permissions(struct pstore_private *ps)
-{
-	switch (ps->type) {
-	case PSTORE_TYPE_DMESG:
-	case PSTORE_TYPE_CONSOLE:
-		return check_syslog_permissions(SYSLOG_ACTION_READ_ALL,
-			SYSLOG_FROM_READER);
-	default:
-		return 0;
-	}
-}
-
 static ssize_t pstore_file_read(struct file *file, char __user *userbuf,
 						size_t count, loff_t *ppos)
 {
@@ -151,10 +139,6 @@ static int pstore_file_open(struct inode *inode, struct file *file)
 	int err;
 	const struct seq_operations *sops = NULL;
 
-	err = pstore_check_syslog_permissions(ps);
-	if (err)
-		return err;
-
 	if (ps->type == PSTORE_TYPE_FTRACE)
 		sops = &pstore_ftrace_seq_ops;
 
@@ -191,11 +175,6 @@ static const struct file_operations pstore_file_operations = {
 static int pstore_unlink(struct inode *dir, struct dentry *dentry)
 {
 	struct pstore_private *p = d_inode(dentry)->i_private;
-	int err;
-
-	err = pstore_check_syslog_permissions(p);
-	if (err)
-		return err;
 
 	if (p->psi->erase)
 		p->psi->erase(p->type, p->id, p->count,
@@ -216,7 +195,7 @@ static void pstore_evict_inode(struct inode *inode)
 		spin_lock_irqsave(&allpstore_lock, flags);
 		list_del(&p->list);
 		spin_unlock_irqrestore(&allpstore_lock, flags);
-		kfree(p);
+		vfree(p);
 	}
 }
 
@@ -328,7 +307,7 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
 		goto fail;
 	inode->i_mode = S_IFREG | 0444;
 	inode->i_fop = &pstore_file_operations;
-	private = kmalloc(sizeof *private + size, GFP_KERNEL);
+	private = vmalloc(sizeof *private + size);
 	if (!private)
 		goto fail_alloc;
 	private->type = type;
@@ -402,7 +381,7 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
 
 fail_lockedalloc:
 	mutex_unlock(&d_inode(root)->i_mutex);
-	kfree(private);
+	vfree(private);
 fail_alloc:
 	iput(inode);
 
@@ -429,7 +408,7 @@ static int pstore_fill_super(struct super_block *sb, void *data, int silent)
 
 	inode = pstore_get_inode(sb);
 	if (inode) {
-		inode->i_mode = S_IFDIR | 0755;
+		inode->i_mode = S_IFDIR | 0750;
 		inode->i_op = &pstore_dir_inode_operations;
 		inode->i_fop = &simple_dir_operations;
 		inc_nlink(inode);
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 6fbfa8189451..21bf055bdebf 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -36,6 +36,7 @@
 #include <linux/hardirq.h>
 #include <linux/jiffies.h>
 #include <linux/workqueue.h>
+#include <linux/vmalloc.h>
 
 #include "internal.h"
 
@@ -580,7 +581,7 @@ void pstore_get_records(int quiet)
 							big_oops_buf_sz);
 
 			if (unzipped_len > 0) {
-				kfree(buf);
+				vfree(buf);
 				buf = big_oops_buf;
 				size = unzipped_len;
 				compressed = false;
@@ -594,7 +595,7 @@ void pstore_get_records(int quiet)
 				  compressed, (size_t)size, time, psi);
 		if (unzipped_len < 0) {
 			/* Free buffer other than big oops */
-			kfree(buf);
+			vfree(buf);
 			buf = NULL;
 		} else
 			unzipped_len = -1;
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 283b04218997..2a004480fc4f 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -233,7 +233,7 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
 	/* ECC correction notice */
 	ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);
 
-	*buf = kmalloc(size + ecc_notice_size + 1, GFP_KERNEL);
+	*buf = vmalloc(size + ecc_notice_size + 1);
 	if (*buf == NULL)
 		return -ENOMEM;
 
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 11e558efd61e..cdf82f4b5698 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -291,7 +291,7 @@ void persistent_ram_save_old(struct persistent_ram_zone *prz)
 
 	if (!prz->old_log) {
 		persistent_ram_ecc_old(prz);
-		prz->old_log = kmalloc(size, GFP_KERNEL);
+		prz->old_log = vmalloc(size);
 	}
 	if (!prz->old_log) {
 		pr_err("failed to allocate buffer\n");
@@ -377,7 +377,7 @@ void *persistent_ram_old(struct persistent_ram_zone *prz)
 
 void persistent_ram_free_old(struct persistent_ram_zone *prz)
 {
-	kfree(prz->old_log);
+	vfree(prz->old_log);
 	prz->old_log = NULL;
 	prz->old_log_size = 0;
 }